10vacon • 148 ACTIVE FRONT END (NXA)10.4 Active Front End unit technical dataThe technical data for the active front end unit, see table below.*) NX_8 AC drives only available as Ch6x AFE/BCU/INU units.Table 56. Technical dataMains connectionInput voltage U in NX_5: 400…500 VAC (–10%…+10%); 465…800 VDC(–0%…+0%)NX_6: 525…690 VAC (–10%…+10%); 640…1100 VDC(–0%…+0%)NX_8: 525…690 VAC (–10%…+10%); 640…1200 VDC(–0%…+0%) *)Input frequency 45…66 HzConnection to mains Once per minute or lessDC bank capacitance Voltage class 500 V:Voltage class 690 V:Ch3 (16-31A units): 410 μFCh3 (38-61A units): 600 μFCH4: 2400 μFCH5: 7200 μFCH61: 10800 μFCH62/CH72: 10800 μFCH63: 21600 μFCH64/CH74: 32400 μF2*CH64/2*CH74: 64800 μFCH61: 4800 μFCH62/CH72: 4800 μFCH63: 9600 μFCH64/CH74: 14400 μF2*CH64/2*CH74: 28800 μFSupply networkNetworks TN, TT, ITShort circuit current Maximum short circuit current has to be < 100 kA.Rated apparent power The rated apparent power of the supply networkincluding generators and/or transformers shouldbe greater than 50% of the total rated apparentpower of the Active Front End units which are con-nected to the network.DC outputconnectionVoltage 1.35 x U in x 1.1 (default DC link voltage boosting is110%)Continuous outputcurrentRated current at nominal inflow cooling watertemperature according to dimensioning charts.ControlcharacteristicsControl method Open Loop Vector ControlSwitching frequency NXA: Factory setting 3,6 kHzPhone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
